Seamless self-adjusting expansion joint device

Abstract

The invention discloses a seamless self-adjusting expansion joint device. The seamless self-adjusting expansion joint device is characterized in that materials such as polyurea elastic coating, polyurea elastomer and ultrahigh-toughness waterproof concrete are fully utilized, a seamless self-adjusting type expansion joint is realized through a scientific expansion steel structure and function combination, a comb tooth type telescopic plate assembly is arranged on a structure main body, a modular horizontal sliding plate assembly, a middle position relative fixing plate assembly and a horizontal telescopic rod assembly are arranged in the polyurea elastomer, the two end positions of the polyurea elastomer are fixed through elastomer connecting pieces, the horizontal telescopic rod assembly, the middle position relative fixing plate assembly and the horizontal sliding plate assembly are used for controlling deformation of the polyurea elastomer, and an abrasion elastic layer assembly is sprayed on the upper surfaces of the polyurea elastomer and an anchoring assembly to be flush with the outer surface of the structure main body. According to the seamless self-adjusting expansion joint device, construction is easy, the deformation function of the expansion joint device is reserved, vehicle driving and people passing are smooth, vibration is small, noise is low, waterproofness is good, durability is achieved, maintenance does not need, the landscape is good, and the deformation amount of the expansion joint is not limited any more through the modular horizontal sliding plate combination.

Description

technical field [0001] The invention relates to the technical fields of construction and bridge traffic, in particular to a seamless self-adjusting expansion joint device. Background technique [0002] Construction expansion joints are expansion joints, which refer to a structural joint set at an appropriate part along the construction joint direction of a building or structure in order to prevent cracks or damage to the structure due to climate temperature changes (thermal expansion, cold contraction). The expansion joint is to divide the building components above the foundation such as walls, floors, roofs (except wooden roofs) into two independent parts, so that buildings or structures can be horizontally expanded along the long direction. [0003] Traditional bridge slotted expansion joint devices are mainly modular expansion devices and comb-tooth plate expansion devices, which mainly use special-shaped steel and waterproof sealing rubber strips. Although they have the ...

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Problems solved by technology

[0003] Traditional bridge slotted expansion joint devices are mainly modular expansion devices and comb-tooth plate expansion devices, which mainly use special-shaped steel and waterproof sealing rubber strips. Although they have the characteristics of simple design and wide use, there are many deficiencies. Specifically, : It is necessary to regularly clean up the sundries in the expansion joint to prevent the expansion joint from being blocked; the waterproof sealing rubber strip has poor durability and is prone to water leakage; driving is not smooth with expansion joints, which is likely to cause jumping; the noise is loud when driving, especially when the special-shaped steel plate is loose. Serious; during maintenance and repair, traffic flow will be affected

[0004] Traditional bridge seamless expansion joint devices are mainly filled with TST elastomers or polyurethane resin elastomer devices. Although TST elastomers have the characteristics of simple structure and convenient construction, there are many shortcomings, specifically: TST elastomers have low strength and are easy to deform , TST elastomer has poor durability and is prone to cracking and damage; polyurethane resin elastomer device, polyurethane resin elastomer has poor durability and is prone to cracking and damage. seam

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